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""" Legacy stuff
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Various stuff that are there for historical / familiarity reasons.
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This is automatically imported by default profile, though not other profiles
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(e.g. 'sh' profile).
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Stuff that is considered obsolete / redundant is gradually moved here.
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"""
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import IPython.ipapi
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ip = IPython.ipapi.get()
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import os,sys
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from IPython.genutils import *
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# use rehashx
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def magic_rehash(self, parameter_s = ''):
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"""Update the alias table with all entries in $PATH.
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This version does no checks on execute permissions or whether the
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contents of $PATH are truly files (instead of directories or something
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else). For such a safer (but slower) version, use %rehashx."""
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# This function (and rehashx) manipulate the alias_table directly
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# rather than calling magic_alias, for speed reasons. A rehash on a
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# typical Linux box involves several thousand entries, so efficiency
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# here is a top concern.
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path = filter(os.path.isdir,os.environ.get('PATH','').split(os.pathsep))
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alias_table = self.shell.alias_table
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for pdir in path:
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for ff in os.listdir(pdir):
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# each entry in the alias table must be (N,name), where
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# N is the number of positional arguments of the alias.
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alias_table[ff] = (0,ff)
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# Make sure the alias table doesn't contain keywords or builtins
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self.shell.alias_table_validate()
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# Call again init_auto_alias() so we get 'rm -i' and other modified
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# aliases since %rehash will probably clobber them
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self.shell.init_auto_alias()
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ip.expose_magic("rehash", magic_rehash)
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# Exit
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def magic_Quit(self, parameter_s=''):
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"""Exit IPython without confirmation (like %Exit)."""
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self.shell.ask_exit()
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ip.expose_magic("Quit", magic_Quit)
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# make it autocallable fn if you really need it
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def magic_p(self, parameter_s=''):
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"""Just a short alias for Python's 'print'."""
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exec 'print ' + parameter_s in self.shell.user_ns
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ip.expose_magic("p", magic_p)
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